Greetings,
How successful has IMGate been against DOS attacks? A local government agency supposedly took down one the local dialup isp's T3 line down = twice in the last month. I believe they have a ptp T1 into the isp from their = local office. The isp has shut them off and sent them to Verizon for help. = The ip in question is 12.4.184.216. The PTR's for this IP are as follows: 12.4.184.216 PTR record: www.hmjmhmr.org. [TTL 3600s] [A=3D12.4.184.216] 12.4.184.216 PTR record: hmjmhmr.org. [TTL 3600s] [A=3D12.4.184.216] 12.4.184.216 PTR record: www.mjbsu.org. [TTL 3600s] [A=3D12.4.184.216] 12.4.184.216 PTR record: mjbsu.org. [TTL 3600s] [A=3D12.4.184.216] 12.4.184.216 PTR record: smtp.hmjmhmr.org. [TTL 3600s] [A=3DNone] = *ERROR* A record does not point back to original IP. 12.4.184.216 PTR record: smtp.mjbsu.org. [TTL 3600s] [A=3DNone] *ERROR* = A record does not point back to original IP. 12.4.184.216 PTR record: www.hbsu.org. [TTL 3600s] [A=3D12.4.184.216] 12.4.184.216 PTR record: hbsu.org. [TTL 3600s] [A=3D12.4.184.216] 12.4.184.216 PTR record: smtp.hbsu.org. [TTL 3600s] [A=3DNone] *ERROR* A record does not point back to original IP. 12.4.184.216 PTR record: mail.hbsu.org. [TTL 3600s] [A=3D12.4.184.216] 12.4.184.216 PTR record: mail.hmjmhmr.org. [TTL 3600s] = [A=3D12.4.184.216] 12.4.184.216 PTR record: mail.mjbsu.org. [TTL 3600s] [A=3D12.4.184.216] 12.4.184.216 PTR record: www.huntccs.org. [TTL 3600s] [A=3D12.4.184.216] 12.4.184.216 PTR record: huntccs.org. [TTL 3600s] [A=3D12.4.184.216] 12.4.184.216 PTR record: mail.huntccs.org. [TTL 3600s] = [A=3D12.4.184.216] How would one approach clearing up this problem? Would dual IMGate boxes before the mailservers be enough to do it if we could tarpit the originator(s). I talked to the MIS person today who told me they had "experts" working = on it but I told her that if they couldn't fix her up, I would put her in contact with Len , whom I was sure could help them out. Thanks again. Grant EA Media =20 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.465 / Virus Database: 263 - Release Date: 3/25/2003 =20 ********** **** This E-mail scanned for viruses by EA Media Mail Services *****
